#513091
Closest named color: Dark Slate Blue (#483D8B). oklch(40.6% 0.152 294.3), rgb(81, 48, 145).
Aa
White text reads best on this color (9.62:1).
About this color
#513091 is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.152 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.034 away. White text reads best on it, at 9.62:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.18:1 |
| White text | 9.62:1 |
Values
| HEX | #513091 |
| RGB | rgb(81, 48, 145) |
| HSL | hsl(260, 50%, 38%) |
| OKLCH | oklch(40.6% 0.152 294.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #513091 | 9.62:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #513091 | 2.18:1 | Fails | Lc 12.2 | Not readable |
| #513091 text on white | 9.62:1 | AAA | Lc 91.8 | Preferred for body text |
| #513091 text on black | 2.18:1 | Fails | Lc -10.6 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#DAD3F7
oklch(88.4% 0.05 294.3)
-
Step 300
300
#C3B6F5
oklch(80.9% 0.089 293.8)
-
Step 400
400
#A68DF0
oklch(70.6% 0.143 294.1)
-
Step 500
500
#926DEA
oklch(63% 0.182 294.2)
-
Step 600
600
#7E51D8
oklch(55.5% 0.197 294.4)
-
Step 700
700
#6B41BC
oklch(49.2% 0.183 294.4)
-
Step 800
800 (this color)
#513091
oklch(40.6% 0.152 294.3)
-
Step 900
900
#473179
oklch(37.8% 0.118 294.1)
-
Step 950
950
#291D47
oklch(26.9% 0.076 293.9)
#513091 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #004694 | 0.095 |
| Deuteranopia (no green cones) | #00438F | 0.095 |
| Tritanopia (no blue cones) | #3F475C | 0.120 |
| Achromatopsia (no color) | #454545 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513091
#513091
oklch(40.6% 0.152 294.3)
- #494E00
#494E00
oklch(40.5% 0.091 113.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #513091, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.034
- Blueberry #464196 ΔE 0.042
- Rebecca Purple #663399 ΔE 0.043
- Chrysanthemum #560BAD ΔE 0.063
- Imperial Purple #480CA8 ΔE 0.065
- Indigo #4B0082 ΔE 0.075
- Indigo Blue #3A18B1 ΔE 0.080
- Sapphire #2138AB ΔE 0.083
Use #513091 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.